The Prohibition Bureau was a federal agency established in the United States in 1920, following the enactment of the 18th Amendment. Its primary role was to enforce the ban on the manufacture, sale, and transportation of alcoholic beverages, a period known as Prohibition. The Bureau aimed to reduce crime and corruption associated with alcohol consumption. The Prohibition Bureau operated under the Department of the Treasury and employed agents to monitor and combat illegal activities related to alcohol. However, the Bureau faced significant challenges, including widespread public resistance and the rise of organized crime. Ultimately, Prohibition was repealed in 1933 with the 21st Amendment.